Cooking-stove



2 Sheets-Sheet I,

W. COBB.

Cooking Stove.

u, PETERS. Phmmuhognpher. Waslvinglon, u. c

Patehted- June 16, 1846.

2 Sheets.-Sheet 2. W.- COBB.

Cooking Stove. Q

No. 4,585. Patented June 16, I846...

Jay

5 Sec Zzqru TED STATES PATENT OFFICE.

v WILLIAlVI COBB, OF ALBANY, NEW YORK.

COOKING-STOVE.

Specification of Letters Patent No. 4,585, dated June 16, 1846;Antedated January 16, 1846.

To all whom it may concern:

Be it known that I, WILLIAM Coma, of Albany, in the county of Albany andState of New York, have invented a new and useful Improvement inDouble-Oven Stoves; and I do hereby declare that the following is. afull, clear, and exact description of the same, reference being had tothe accompanying drawings, making part of this specification, in whichFigure 1 represents a double oven stove in perspective, Fig. 2, a frontelevation of the same, the front plate of the stove and the back of thefire chamber being supposed to be removed, in order to show horizontalflues, dampers, &c. Fig. 3 is a vertical longitudinal section, and Fig.4 a view of the bottom plate with the division strips forming the fiuesbeneath the oven.

The same letters refer to the same parts in all the figures.

a is the upper oven with a larger one 6 situated immediately below it.

0 is the fire chamber on a level with the upper oven.

(Z is the grate.

e e is a diving fiue descending at the back of the fire box andextending downward so as to communicate with the fiues beneath the loweroven but having also communication with the fiues f f between thislatter and the upper oven at 9;.

The rear of the flue f f has an opening it communicating with the middlefiue at the back of the stove, leading to the smoke pipe; which openingmay be wholly or partially closed by the sliding damper z'. The upperand middle fines j j and f f extend the whole breadth of the stove,without partition or division. The space between the bottom plate of theoven and the bot-tom of the stove, may be considered as divided intothree fiues 7e is, Z Z, and m m, the center one at m being subdividedinto two by the dia phragm or dividing plate n n which extends upward inthe rear, no farther than the top of the lower oven, as shown at 0 0Fig. 3. The object of this diaphragm is merely to more fully equalizethe heat upon the lower oven. At pin the upper flue j j is a damperserving to cut olf the direct com -munication from the fire box to thesmoke pipe, as well as to the side fiues Z; and Z Z. While the damper pis yet open, the communication with the smoke pipe may still be cut offby the curved, vertical sliding damper 9 (Figs. 3 and 4) being broughtto the position indicated by the dotted line in Fig. 4. The top of thefront diving fiue oven. The two ends of this lever '0 and w,

work respectively, in slots in the movable plate of the registers orsliding dampers r 1" and s s. It will be readily seen that when thedamper r r is drawn open, 5 s will be shut, and vice versa.

The operation is as follows. The fire being kindled in the fire box, andthe dampers 29 and q being opened and '1" 1" shut, the products ofcombustion pass directly through the upper fiue j j to the smoke pipe.When it is required to throw the heated current beneath the upper ovenonly, either one or both the dampers p and g are closed and r r, and 2'opened. The current then passes down 6 e to g thence through the middlefiue f to, and up the rear flue y to the smoke pipe. Then in this lastcase the damper r 1" is opened, it is evident that by the action of thelever 27 t, (as before described) s s will be shut, and the current thusbe prevented from passing beneath the lower Another similar damper s sis placed oven. When the lower oven is to be heated,

the damper r 1 is closed, and s s consequently opened. The damper q isalso closed and 2' opened. The current then descends the two outer fiuesx m at the rear of the stove and after passing beneath the lower oven,ascends through 6 6 into f f and thence by the middle rear fine 3 to thesmoke pipe.

\Vhat I claim as my invention and desire to secure by Letters Patent is,

The connecting the upper and lower dampers r r and s s by a lever 25 tin such a manner that when one damper is opened, the

other will be shut, in combination with two

